#include <iostream>

using namespace std;

int main()
{
    int a = 3;
    int b = -4;
    int c = 0xc;
    // cout << (a>>1) << "\n" ;
    // cout << (b>>1) << "\n" ;
    cout << (a<<1) << "\n" ;
    cout << (b<<1) << "\n" ;
    cout << c << "\n";
    return 0;
}